US 12,001,623 B2
Decorative sheet and electrostatic input device
Kenta Suzuki, Miyagi (JP); Masahito Watanabe, Miyagi (JP); and Hiroshi Kobayashi, Miyagi (JP)
Assigned to ALPS ALPINE CO., LTD., Tokyo (JP)
Filed by ALPS ALPINE CO., LTD., Tokyo (JP)
Filed on Dec. 23, 2021, as Appl. No. 17/645,810.
Application 17/645,810 is a continuation of application No. PCT/JP2020/010564, filed on Mar. 11, 2020.
Claims priority of application No. 2019-123193 (JP), filed on Jul. 1, 2019.
Prior Publication US 2022/0113827 A1, Apr. 14, 2022
Int. Cl. G06F 3/041 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B44F 9/02 (2006.01); G06F 3/01 (2006.01)
CPC G06F 3/0412 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B44F 9/02 (2013.01); B32B 2307/4023 (2013.01); B32B 2307/412 (2013.01); B32B 2451/00 (2013.01); G06F 3/016 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A decorative sheet to be attached to a surface of a decoration target part, the decorative sheet comprising:
a base film layer formed of a base film having a sheet shape;
a decorative layer representing a decorative pattern;
a light shield layer provided on a back side position with respect to the decorative layer, the light shield layer including a light transmitting portion having a predetermined shape;
a light diffusion layer that diffuses light, the light diffusion layer formed by printing a white ink on a surface of the decorative laver; and
a medium color layer formed between the decorative layer and the light shield layer,
wherein the medium color layer is formed by using an ink having a gray-based color, and the light diffusion layer is formed between the decorative layer and the medium color layer.